Turbine



511111.30, 1930. R. G. DQGAS' I 1,776,893

gmt

sept. 30, 1930.

R. G. Dua-As TURBINB z sheets-sneer 2 Filed Oct. 2.7, 1928 Patented Sept; 30,V 1930 y ci iioDoLPiI G. Dimas, 0F' iiiniiivioitnmnxiis" Timmins c ,e

Appiicaaon filed october a7, iezaf serial initiates.

This invention `relates to new and useful improvements in a turbine. One object of the inventionis to provide a turbine of the character described embodyu ing a casing having an annular stator therein and rotors fixed relative to each other one on each side of the stator, each side of the stator having an annular channel and the adjacent sides yof theV rotors being provided with' i series of pockets adapted to successively regi ister with the ,corresponding stator channels and provided to receive the motive fluid, said turbine being provided with a Vmotive fluid l inlet which branches so as to simultaneously deliver the motiveiiuid into the pocketson each side of the stator as well as with outlet openings leading from the series of pockets on each side of the stator. Y

lVith the above and other objects in view this invention has `particular relation 'to certain novel features of construction, operation and arrangement of parts an example of which is given in this specification and illustrated in the accompanying drawings, where- Figure 1 shows an elevation ofthe turbine. Figure 2 shows a cross sectional view taken on the line 2--2 of Figure 3. f j

Figure 3 shows a plan view ot' the turbine, partly in section, showing thetop of the casing and the adjacent' section of the stat-or removed, and y I Y Figure 4 shows a sectional view of the sta- Y tor taken on the line 4-4 of Figure 2.

Referring now more particularly to the drawings, wherein like numerals of reference designate similar parts in each of the figures, the numerals 1, 2' designate the upper and lower sections of the turbine casingwvhich have the coinciding outwardly turned lianges "3, Llt-secured together by the bolts `5. l The casing has the inside chamber 6, circular in Y form, and enclosed bythe circular end plates 7 7 which are bolted to the respective ends i of the casing. Each end plate has a bracket 8 said brackets being provided with the bearingv housings 9, 9 in whichare theantiiriction bearings-as 9, aligned with each other and withl the stu'liing boXeslO, 10 carriedfby and concentric withithev end plate 7; l

VRotatably lmounted' in said bearings and stuliing boxes :therev is'a shaft 11, which is retainedagainst endwise movement byineans of the retainer collars '12, 12 which are securedl 1 yon said shaft'and abut the outer ends of said bearings9.

:Formed integrally withthe shaft 11, and

ttedclosely .within the chamber 16 there is a cylinder 13 whose ends tit against the end plates Tand which .has the spaced rotors 14, 14

with the cylinder ends-and whichv fit closely withinthe chamber 6.- The inner, or facing sides of these rotors have the spaced pocketsV 15, 15. Fitted closely around Vthe cylinder 13, between the rotors 14 there is an annular stator 16 preferably rformed oi two sections, and whose outer side is counter sunk into the walls of the casing. This statorhas an enteriial stud 18 which is seated into Va correspondagainst turning.

ing'recess 19 in the casing toliold the stator The' casing :hasa'substantiallytangential motive fluid inlet E20 into which the inlet line 21 is connected and the stator has aperipheral inlet channel 22 which'separates into the arcuate side channels 23,' 23 which vgradually taper'out and extend around the stator Vand with which the pockets 151 register succes sively asthe' rotors turn. Atfthe ends of V6o formed thereon Whose outer ends are iiush these side channels the casing is-provided with l the discharge outlets 24, 24 'with which the 4outlet ends of said channels communicate.

Steam or other'luid, under pressure, is admitted through the inlet line21 andipasses through the inlet 22 and side channels 23,

into the pockets 25 in registration with saidy side channelsfand forces the rotors to turn, t-lieste'ani` trapped in said pockets 15 being exhausted from said pockets successively through the outlets Q4..

The rotors 14 are balanced and their pockets will simultaneously receive equal impulses of the motive fluid and a very powert'ul and smooth running turbine is thus provided.

IVhile I have shown what I now consider to be the preferred form of the invention it is obvious that mechanical changes may be made therein and equivalents substituted for the parts shown within the principle of the invention.

lVhat I claim is l. A turbine including a casing having an inlet, a pair of rotors iitted in the easing and spaced apart, a stator between said rotors, each side of the stator having an arcuate channel in communication with said inlet, and the sides of the rotors adjacent the stator having pockets which register successively with the corresponding channels as the rotors rotate, said casing having outlets with which said channels communicate and with which said rotor pockets successively register.

2. A turbine having a casing with an inter nal chamber, a pair of rotors spaced apart and rotatable as a unit, a stator fitted closely between the rotors, each side of the stator having an arcuate channel, said casing hav-v ing a pressure fluid inlet leading into said channels and also having outlets with which said channels communicate, the sides of the rotors adjacent the stator having spaced pockets, each pocket being arranged to register with its corresponding channel and outlet alternately as the rotors rotate.

3. A turbine including easing having an inlet for motive fluid and discharge outlets, a cylinder in the casing chamber having spaced rotors, an annular stator around said cylinder and fitted closely between the rotors, said stator having arcuate channels which coinmunieate with said inlet and terminate at said outlets, the sides ot the rotors adjacent the stator having spaced pockets, each pocket being positioned to register with its corresponding channel and outlet as the stators rotate.

4L. A turbine including` a casing having an inlet for motive fluid and discharge outlets, a cylinder in the casing chamber having spaced rotors, an annular stator around said cylinder between the rotors, said stator having arcuate channels which communicate with said inlet and outlets, the sides of the rotors adjacent the stator having spaced pockets, each pocket being positioned to register with its corresponding channel and outlet as the stators rotate and a shaft for taking oli' power from said rotors.

5. A turbine including a casing having an inlet, a cylinder fitted closely within the casing and having an annular channel therearound forming two rotors, an annular stator RUDOLPH G. DUGAS. 

